As an additional cost to cast this spell, sacrifice a creature or pay {3}.

Flying Whenever this creature deals combat damage to a player, each player mills a card. (Each player puts the top card of their library into their graveyard.)

When this creature enters, you draw a card and you lose 1 life. Unearth {2}{B} ({2}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

When this creature enters, each player discards a card. Unearth {1}{B} ({1}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Return target creature card from your graveyard to the battlefield. Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target player mills four cards. Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Enchant creature Enchanted creature gets +1/+0 and has fear. (It can't be blocked except by artifact creatures and/or black creatures.) When a creature with mana value 6 or greater enters, you may return this card from your graveyard to the battlefield attached to that creature.

Add {B}{B}{B}.

Destroy target nonblack creature if its toughness is less than or equal to the number of cards in your graveyard.

{T}: Add {C}. {T}, Tap an untapped creature you control: Add one mana of any color.